UPS neutral connection

[kenaslan]

I have a set of drawings showing the neutral wire coming from a UPS being connected to the Neutral wire of the source for a common neutral. To me this seems like a code violation, but I am unable to confirm this in the NEC. Could this possibly burn up the UPS as well?

Ken

 

[ron]

Can you post a oneline?
4 wire output with a 4 wire bypass will inevitable have the output neutral connecting to the input neutral.

 

[dbuckley]

UPS neutrals are commonly solid from input (and bypass input(s)) to output.

 

[MBM1]

I have a set of drawings showing the neutral wire coming from a UPS being connected to the Neutral wire of the source for a common neutral. To me this seems like a code violation, but I am unable to confirm this in the NEC. Could this possibly burn up the UPS as well?

Ken

We just installed a 30kva UPS and all neutrals did land on the same spot inside the maint bypass switch.